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MAY-19-04 14:24 FROM-WEISS AND VAN SCOYK 970 879 6058 T-286 P.028/033 F-562 <br />iiot signiftcantlv deerense thc? cross-seccialcrl trrect of the slrenmbed ar tlieir <br />locacion. Nun,terous I-IEC-RAS rrtodels of simila,- srrarctiu•es zn similnr river-s <br />have shotivn that rhese srraiccarres do rzot create ca floorl hczzard. " <br />Observations made during the sitc visit indicated that a signifcanc amount of fill <br />had been placed within the chaiznel to constniet both of the boating strucnirzs. While a <br />topographic survcy was ilot conducted I'iourE 1, talcen at the time of the site visit <br />contrasts che natural channeI cross sectioii with that of the upstream stnicture. Mr. Lacy <br />indicates that the siructures were constructed "at grade". L-xaminiizb the pre-construction <br />drawings aceompanying the U.S. Army, Corps of Engineers 404 permic application <br />indica.tes that the stnicture designated as "D-1-Iole" vsias to ve placed one (1) to three (3) <br />feet above clze channel bed. Realizing chat the extznt of infltience would need to be <br />quantified througll a site-specific hydraulic analysis, it is Iilcely that this amottnl of fil.l in <br />the river would resuit in a changz in the water surFace elevation. F'inally, a reference for <br />the "numerous HEC-RAS models" prepared and lnalyzed for tllese types of structures <br />could not be located in Ehe information provided. <br />The memorandum prepared by Mr. Tom Browning, with the Colorada Watcr <br />Conservation Board Flood Protection Program, dated Apri126, 2004, lliglllights the main <br />issues associated with the proposed Recreational Iii-Chaainel Diversion (RICD). Sevaral <br />issues raised by Mr. Browning provide a stronS basis for conducting an in depdl <br />hydraulic analysis oF the entire stn.icture fieid as described in the United States Army <br />Corps of rnginecrs 404 permit mimber 2000175121. Granting of a 404 permit by the <br />Corps of Engineers is typically done with the condition that no federal, state and/ar local <br />regulations be violated. Tn review oF the City of Steamboat Springs 2001 Community <br />Development Code, in review o!' the supplied in.Eormation, it appears that federal and <br />local regulations were not followed prior to the consiruction of the project. <br />r1r,u1c a. 1„-r1u1C Wl.151[Gcllfl 01 1J JLi'CCL t3C1l1gC